83811077604688 has 160 divisors (see below), whose sum is σ = 198799472019456. Its totient is φ = 33449004255744.

The previous prime is 83811077604673. The next prime is 83811077604689. The reversal of 83811077604688 is 88640677011838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83811077604689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32773470 + ... + 35238082.

Almost surely, 2^{83811077604688} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83811077604688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99399736009728).

83811077604688 is an abundant number, since it is smaller than the sum of its proper divisors (114988394414768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83811077604688 is a wasteful number, since it uses less digits than its factorization.

83811077604688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465001 (or 2464995 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 67.

The spelling of 83811077604688 in words is "eighty-three trillion, eight hundred eleven billion, seventy-seven million, six hundred four thousand, six hundred eighty-eight".